New Jersey · Fishing
Fishing in Franklin Township, New Jersey
Franklin Township sits within reach of some genuinely productive still-water fishing in central and western New Jersey, with four lakes and reservoirs worth putting on your calendar.
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Franklin Township sits within reach of some genuinely productive still-water fishing in central and western New Jersey, with four lakes and reservoirs worth putting on your calendar. The headliner for most anglers is Round Valley Reservoir, a deep, cold-water impoundment at 360 feet elevation that holds lake trout, brown trout, rainbow trout, and smallmouth bass — the kind of fishery that rewards patience and the right presentation depth. Merrill Creek Reservoir, sitting considerably higher at 1,080 feet, runs easier in terms of access and holds a solid mix of rainbow trout, brown trout, smallmouth bass, and largemouth bass, making it a reasonable starting point if you're newer to reservoir fishing. McCarthys Lakes and Idle Acres Lake round out the local options for anglers who prefer a quieter, smaller-water experience. Seasons matter here: trout fishing picks up in spring around stocking periods and again in fall when water temperatures drop, while bass fishing tends to hit its stride from late spring through early summer. Whether you're rigging for trout in deep water or working the shallows for bass, Franklin Township's reservoir fisheries give you real options across skill levels.
Frequently asked questions
What fish species can I target at Round Valley Reservoir?
Round Valley holds lake trout, brown trout, rainbow trout, and smallmouth bass. The lake trout in particular favor deep, cold water, so you'll generally need to fish deeper than you would at a typical New Jersey lake, especially once summer sets in and the surface warms up.
How does Merrill Creek Reservoir compare to Round Valley for a beginner?
Merrill Creek is rated easy difficulty and sits at 1,080 feet elevation, and its mix of rainbow trout, brown trout, smallmouth bass, and largemouth bass gives beginners more variety to work with. It's a reasonable first reservoir trip if you're not yet comfortable targeting deep-water species like lake trout.
Do I need a New Jersey fishing license to fish these waters?
Yes, a valid New Jersey fishing license is required for anyone 16 and older at all four locations. Some reservoirs also require a separate reservoir permit on top of the standard license, so check the New Jersey Division of Fish and Wildlife's current requirements for Round Valley and Merrill Creek specifically before you go.
What time of day is best for fishing these reservoirs?
Early morning is consistently the most productive window at both reservoirs, particularly for trout, which tend to feed more actively in lower light and cooler surface temperatures. Evening can also be worthwhile for bass, especially in late spring and early summer when they're more active near the shallows.
What gear should I bring for lake fishing at Round Valley or Merrill Creek?
For trout at Round Valley, a medium to medium-heavy spinning or baitcasting setup with the ability to fish deep is important — think lead-core line or downriggers if you're going after lake trout. At Merrill Creek, a standard medium spinning rod handles the trout and bass mix well. Bring a valid fishing license, appropriate terminal tackle for the species you're targeting, and check whether boat access or shore fishing is available for your planned visit, as access rules can vary by reservoir.
